Engineering Safe Passages: How North America’s Largest Wildlife Overpass Reduced I-25 Collisions by 91%

Ten months after opening across Interstate 25 between Larkspur and Monument, North America’s largest wildlife overpass has reduced animal-vehicle crashes by 91%. Combining a 200-foot-wide vegetated bridge deck with 8-foot directional fencing, it offers a compelling blueprint for human safety and ecological connectivity.
















































































